The 2018 combined second and third issue of Kodansha’s Young Magazine has announced that Akira Hiramoto’s Prison School manga will end in the next issue on December 25, 2017.
The story of the manga is described as:
Hachimitsu Private Academy was a revered and elite all-girls’ boarding school on the outskirts of Tokyo… once upon a time. But with the new school year comes a revision to school policy: Boys are to be admitted into the student body for the first time ever. But on his first day at Hachimitsu, Kiyoshi Fujino discovers that he’s one of only five boys enrolled at the school. Their numbers overwhelmed by the thousand girls in the student body, is it heaven or hell that awaits these five (un)fortunates?
Hiramoto launched Prison School in Young Magazine in February 2011. Yen Press publishes the manga in English. The manga won the Best General Manga award alongside Yūji Moritaka and Keiji Adachi’s Gurazeni manga at Kodansha’s 37th Annual Manga Awards in 2013.